#374 Longevity Secrets of Centenarians - Dr Nir Barzilai
Sep 2, 2023
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Dr Nir Barzilai, longevity researcher, discusses the secrets of long-living centenarians, genes that make you live longer, and how to turn on your longevity genes. He also explores the benefits of metformin for slowing down aging and the potential side effects.
Genetic and environmental factors contribute to the longevity of centenarians, providing insights for targeted interventions to delay aging and prevent age-related diseases.
Metformin, a drug commonly used for diabetes, holds promise as an anti-aging intervention due to its impact on multiple hallmarks of aging and positive outcomes in reducing various diseases.
Deep dives
Discovering Longevity Genes in Centenarians
Research on centenarians has revealed that the genes associated with their longevity are remarkably similar to what has been observed in animals. The focus of the study is to identify genetic and environmental factors that contribute to the exceptionally long lives of centenarians. Although there are similarities between animals and humans in terms of aging pathways, it is crucial to study actual human outcomes to better understand the scientific basis of longevity. The study investigates the influence of both genetic and environmental factors on extreme human longevity.
Understanding Longevity and Healthspan
One of the key concepts discussed in the podcast episode is the distinction between longevity and healthspan. While longevity refers to a longer lifespan, healthspan refers to the duration in which an individual experiences optimal health. The goal is not just to live longer but to live healthier for a longer period of time. Targeting the biology of aging can potentially delay age-related diseases and improve both longevity and healthspan.
Exploring the Genetics of Aging and Disease
Genetic research has demonstrated that certain genetic factors play a significant role in aging and disease. The insulin IGF-1 signaling pathway has been identified as a key pathway associated with longevity in both animals and humans. By manipulating this pathway, researchers have observed an extension in lifespan and a decrease in age-related diseases. Additionally, other genetic mutations related to cholesterol metabolism and cognitive function have been found in human centenarians. Identifying these longevity genes opens up possibilities for developing targeted interventions to delay aging and prevent age-related diseases.
Considering Metformin as a Potential Anti-Aging Drug
Metformin, a commonly prescribed drug for diabetes, has also shown potential for its anti-aging effects. As a gerotherapeutic drug, metformin affects multiple hallmarks of aging, making it a promising candidate for extending lifespan and healthspan. The drug's mechanisms of action include reducing insulin levels, impacting mTOR signaling, and improving immune function and inflammation. Although clinical studies are ongoing, metformin has already shown positive outcomes in reducing diabetes, cardiovascular disease, cancer risk, and even mortality rates. However, careful consideration and consultation with healthcare professionals are necessary when deciding to take metformin as a potential longevity intervention.
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Timestamps:
02:00 Nir's Beginning in Longevity Research
05:00 Fasting and Calorie Restriction in Mice
10:55 Similarities Between Animal and Human Aging
18:25 Tradeoffs in Longevity and Frailty
23:50 Secrets of Long-Living Centenarians
28:20 Genes That Make You Live Longer
32:05 How to Turn On Your Longevity Genes
32:21 Can Metformin Slow Down Aging
43:45 Metformin Side-Effects
Nir's Book Age Later: https://amzn.to/44BqX1n
The Supplements That Lowered My Age by 12 Years: https://youtu.be/VsZRKvb1Fuo
The Diet & Routine That Lowered My Age by 12 Years: https://youtu.be/5KNsfEBXKMg
The Workout Plan That Lowered My Age by 12 Years: https://youtu.be/OsVXAW-Tc3Y
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